TS 1893 
.U6 
Copy 1 



HANDBOOK 



OF 



MECHANICAL 
RUBBER GOODS 




For the 
SHIP-BUILDING INDUSTRY 



United States Rubber Company 

MECHANICAL GOODS DIVISION 



HANDBOOK 

OF 

MECHANICAL 
RUBBER GOODS 

For the Ship-Building Industry 




PUBLISHED BY 



United States Rubber Company 

MECHANICAL GOODS DIVISION 

NEW YORK CITY 

U. S. A. 




t 2 l juN 20 1919 



FOREWORD 

THE application of Mechanical Rubber Goods involves 
much more than a thorough knowledge of the manufacture 
of rubber products. It also necessitates a long period of 
actual experience and resulting knowledge of the requirements of 
each particular industry and the physical conditions contribu- 
ting to the actual service expected from a given article in that 
industry. 

The United States Rubber Company is endeavoring not only 
to sell its product for so many dollars ■, but is also vitally inter- 
ested in giving so many days or other units of service per dollar 
invested. 

With this thought in mind, this Handbook of Mechanical 
Rubber Goods is published. It is a compilation of the recom- 
mendations for United States Rubber Company's products 
arranged in such a manner as to enable an operator to readily 
find the recommendation for any particular rubber product used 
in his plant. 

We have attempted to treat those conditions which can be re- 
garded as general in this industry. The specific conditions can 
only be efficiently considered by the personal inspection by a 
competent mechanical goods sales engineer and his resulting 
recommendation. 

We have made a study of the working conditions of the indus- 
try herein considered and the recommendations made are not 
based on theory , but on actual practice spread over a manufac- 
turing period of forty years, and the study of service conditions 
of all classes of mechanical rubber goods during that time. 

United States Rubber Company, 

Mechanical Goods Division. 



M 




[4) 




SHIP-BUILDING 

AIR HOSE 

Main Line and Leaders 

THE largest investment made by Ship-building 
Companies in rubber goods, annually, comprises 
the purchase of air hose. This material is used for con- 
veying the air from the compressor pipe lines to the 
pneumatic riveters, chisels, drills, punchers, etc. The 
general practise is to use %-inch hose for the main line 
and J^-inch hose for the leaders. 

Air hose used in ship-building, to be successful, must 
withstand considerable abrasion on the cover, due to 
dragging around over structural steel. It must also be 
so constructed as to momentarily withstand the con- 
tact with hot rivets. 

The carcass of the hose must be designed to readily 
take care oi a working pressure of about eighty pounds 
and in some cases a 50 per cent, overload, due to the 
sudden shutting off of the air at the "gun." The carcass 
must also produce flexibility in the hose, thereby pre- 
venting it from kinking, which in turn prohibits the 
intercession of the air when the hose is abruptly bent 
around a sharp corner. 

The tube must be so compounded, or constructed, as 
to enable it to readily withstand the vaporized oil com- 
ing from the compressor, thereby preventing porosity. 
If the tube should disintegrate because of the oil, small 

'[5] 




SHIP-BUILDING 



particles of rubber would soon clog the "gun." This 
condition would naturally result in a slow working tool, 
and loss of time to the operator. The tube must be 
flexible enough to readily conform to acute bending 
without rupturing the tube. 

For air-tool work in shipyards we recommend our 
No. 4810 Air Hose. This hose has a J^-inch cover of a 
tough rubber compound that will readily withstand the 
abrasive conditions which air liose must meet in ship 
construction. 

The carcass is made of braided plies, which readily 
give the required bursting strength and at the same 
time lend the necessary flexibility to prevent kink- 
ing or collapse. The rubber between the plies is of 
sufficient quality as to make it practically impossible 
to separate the tube from the carcass or the various 
plies from each other. Naturally a construction of 
this kind prevents the much-experienced trouble of 
ply separation. 

No. 4810 Air Hose has a 3^8-inch oil-proof tube which 
is about twice as heavy as is usually employed. Its ex- 
treme pliability and resiliency prevent rupture when the 
hose is curved abruptly. 

All of the above units are joined by wrapping and 
vulcanizing in open heat, a superior process to molding, 
which is generally employed. 

In recommending No. 4810 Air Hose for shipyard ser- 
vice, we have taken into consideration the loss of time 

[6] 




[?] 




SHIP-BUILDING 



caused operators by inefficient air lines, i.e., air lines in 
which there are slow leaks that result in the slow and 
intermittent action of the air tools. 

4810 Air Hose has proven to be the most eco- 
nomical in ultimate cost for the work outlined above, 
particularly when the operator takes into consideration 
all items of cost concerning air hose; such as leakage of 
air, consequent loss in coal, loss in labor, etc. 

We do not recommend wire winding. It is unneces- 
sary. No. 4810 Air Hose is armored with a tough cover 
and the elimination of the wire alleviates hammering 
out flattened wire often caused by an accident. 

The air- tool operator can handle No. 4810 Air Hose 
much more proficiently than heavy armored hose, due 
to its flexibility and light weight. 

Made in the following sizes: 

J^-inch to 13^-inch, inclusive. 

CONNECTING PIPE LINE 

AFTER ships have been launched in a great many 
-ZTL yards, the air is taken aboard the ship from the 
dock by means of a large piece of air hose. This hose 
connects the main pipe line on the dock to the main 
distributing valves on the deck. 

The hose used is generally 2, 23^2 or 3-inch. As a 
rule, it must carry an average working pressure of 100 
pounds and must be flexible, so as to readily take the 

[8] 




SHIP-BUILDING 



curvature from the dock to the side of the ship and then 
again from the side of the ship to the deck. 

For this service we recommend 2, i}4 or 3-inch 
Granite Air Hose, in either 5 or 6-ply, depending upon 
the air pressure in use. 

We do not recommend wire winding for this service 
as it is unnecessary, because of the absence of continu- 
ous abrasion. 

ACETYLENE HOSE 

THE extensive use of acetylene welding apparatus, 
which has come into vogue in recent years, has 
also brought about an increasing demand for acetylene 
hose. 

Acetylene hose conveys the gases (Oxygen and 
Acetylene) from the stored cylinder or generator to the 
blow pipe. It is usually furnished in lengths of 25 feet, 
50 feet, or 100 feet. 

While the maximum working pressure on this hose 
seldom exceeds 150 pounds, it is advisable to have hose 
with a strength great enough to resist the excessive pres- 
sure that is occasionally encountered through faulty 
adjustment in the regulating valves by an inexperienced 
operator. 

The tube of a poor grade hose will often disintegrate 
and clog the flow of gas, both thru the hose and 
thru parts of the torch. 

The oxygen cylinder, which carries the greatest pres- 

c 9 ] 




SHIP-BUILDING 



sure, is generally charged to 1,600 pounds per square 
inch. As this pressure is reduced at the cylinder by the 
regulating valve, the high pressure is never carried into 
the hose except thru faulty adjustment of the valve. 

It is not essential, however, in every-day shop work, 
to manufacture a hose to withstand a maximum pres- 
sure of 1,600 pounds; but as a preventative measure it 
is very wise to have a piece of hose which has a great 
margin of safety over the pressure normally encoun- 
tered. 

For this class of service we recommend our Rainbow 
Acetylene Hose, which is made with a red or black cover 




do] 




SHIP-BUILDING 



to designate oxygen and acetylene lines. This is a light, 
flexible hose that will not kink when it is abruptly bent 
around a corner as is often necessary in effectively using 
the torch. 

Rainbow Acetylene Hose also has a cover designed 
to handle with efficiency the abrasion encountered in 
this class of work. 

Regularly furnished in the following sizes: 
1/4-inch, 5/16-inch, 3/8-inch, and 1/2-inch, and con- 
structed similarly to 4810 Air Hose. 

FIRE HOSE 

FIRE hose is a very necessary adjunct in shipyards, 
due to the great quantity of wood used in various 
classes of construction. The yard must not only be pro- 
tected, but the ships must also have fire hose for fire- 
protection on board. 

We recommend for this service Eureka brand, Single 
Jacket, Cotton Rubber-lined Fire Hose. 

Eureka Hose is made so as to readily withstand the 
pressure generally used on fire-protection hydrants in 
shipyards. It has a tube that will not crack, or harden, 
if properly taken care of while lying idle. To give maxi- 
mum service, Eureka Hose should be thoroughly dried 
after using, and preferably carried on a reel. Running 
water through Eureka Hose every 30 to 60 days pro- 
longs its life. 




["] 




SHIP-BUILDING 



It is generally furnished in iJ/^-inch, 2-inch, and 1Y2- 
inch sizes. Couplings are regularly furnished in expan- 
sion ring pattern. If different thread than standard iron 
pipe thread is desired, a complete thread description or 
sample coupling should be sent to the factory. 

We also manufacture for certain conditions, "Eureka 
Best" Linen Hose, which is made in any length desired 
and labeled strictly in accordance with the require- 
ments and specifications of the Underwriter. "Eureka 
Best" Linen Hose is an unlined hose for indoor fire pro- 
tection and can be very conveniently folded on fire hose 
racks made for this purpose. 

STEAM HOSE 

THE use of Steam Hose in shipbuilding or ship re- 
pair yards is generally confined to the boiler room 
of the power plant, the boiler room of the completed 
ship, or for the purpose of thawing out frozen dry docks. 

In the latter case the hose must stand extreme tem- 
perature, due to the heat of the steam inside of the hose 
and the climatic temperature below freezing point on 
the cover of the hose. 

A bursting steam hose is very liable to prove quite 
injurious to workmen. An efficient hose for this service 
must have a tube that will resist the vulcanizing ten- 
dency of steam. The duck must have sufficient strength 
to handle the high pressure often encountered in con- 

C3] 




SHIP-BUILDING 



veying steam. However, holding pressure does not nec- 
essarily involve adding plies. 

The cover must not only be tough to withstand the 
wear occasioned by dragging the hose around, but it 
must also be so constructed as to prevent cracking, due 
to the extreme temperatures experienced when the hose 
is used for thawing out docks. Wire winding does not per- 
mit the natural expansion of hose under steam pressure. 

We recommend Giant Steam Hose for this service. 
Giant hose embodies all of the necessary features out- 
lined above, and is built especially to economically handle 
service encountered in boiler cleaning and similar work. 

We construct Giant Steam Hose to meet the tem- 
perature corresponding to the pressure under which the 
hose is used and thereby often reduce the number of 
plies which inevitably reduces the ultimate cost. 

The general sizes of steam hose used in shipyards 
are %-inch by 4-ply> i-inch by 5-ply, iX-inch by 5-ply, 
and i>^-inch by 6-ply. 

SUCTION HOSE 

SHIPYARDS, necessarily being located along the 
water front, often find it necessary to dispose of 
quantities of water by suction pumps. A flexible pipe in 
the form of hose is required from the pump to the water. 
This hose is frequently called upon to handle grit, sand, 
and mud in the water. 

[14] 




SHIP-BUILDING 



As a general-purpose hose for this work, we recom- 
mend our Elephant Suction Hose. This hose is gener- 
ally furnished in sizes from i>^-inch to 4^-inch. It is 
manufactured in either smooth or rough-bore construc- 
tion and usually is furnished in 10, 15, 20 or 25 foot 
lengths. 

On all orders for suction hose of whatever type, when 
fittings are not ordered with the hose, it is essential that 
orders specify whether the ends should be straight to 
accommodate couplings or enlarged to accommodate 
nipples. The outside diameter of the shanks of coup- 
lings for a given size is only a very little larger than the 
inside diameter of hose of the same size, so that it is 
not necessary that the hose be larger at the ends than 
elsewhere. Nipples are considerably larger in outside 
diameter than the inside diameter of hose of correspond- 
ing sizes, so that for nipples the ends should always be 
enlarged. In large sizes it is well to have the nipples 
built into the ends of suction hose. For this there is no 
extra charge other than for the fittings used. 

WATER HOSE 

THERE is a very limited quantity of Water Hose 
used in various ship-building plants, but where an 
occasional length is required for washing-up, concrete 
mixing, etc.; we recommend Rainbow brand. 

This hose is a molded water hose of continuous 



[15] 




SHIP-BUILDING 



lengthy which enables the user to obtain any length 
desired without loss due to remnant. It is a high grade 
general-service hose, especially designed to meet the 
service requirements of general water-hose usage. 

It is made in the following sizes: 

3/2-inch, 24-inch, i-inch, 1 3^-inch and 1 3^-inch. 




PILOT PORT AND HATCH RUBBER 

PORT or Hatch Rubber, as the name implies, is used 
as a cushion and air-tight gasket on port-lights and 
hatches. 

General atmospheric conditions, salt water, and the 
compression to which the rubber is subjected while the 
port-lights or hatches are closed, tend to harden or 
crack the ordinary rubber compound. Pilot Port and 
Hatch Rubber is especially constructed to withstand all 

[16] 




SHIP-BUILDING 



of the conditions set forth above, and to readily regain 
its original contour and resiliency when the port-lights 
and hatches are opened. 

It is regularly furnished in strips, the thickness, 
length and width of which are usually specified by the 
consumer. 

MATTING 

CORRUGATED Rubber Matting is used for various 
offices and hallways, by ship-yard builders, and 
is also furnished for various places on board ship. 

For this service we recommend our Pilot Matting, 
regularly furnished in 36-inch widths and any length 
desired. The usual thickness used is 1/8-inch. We manu- 
facture this matting in all thicknesses from 1/ 16-inch 
to 1/2-inch and any desired width up to 48 inches. 

USCO SHEET RUBBER FLOORING 

THERE are floor spaces on board ship where a dur- 
able covering, together with handsome appearance, 
add greatly to the desirability of using Usco Sheet Rub- 
ber Flooring. 

We particularly recommend this material for any 
enclosed cabin space; such as the pilot house, dining 
saloon, companion-ways, etc. 

Usco Sheet Rubber Flooring is made in any color or 
design desired and is constructed by the factory to fit 

[i?3 




SHIP-BUILDING 



the space for which it is intended. The process employed 
in the manufacture of this material enables us to furnish 
a solid sheet of flooring, which is absolutely impervi- 
ous to moisture. 

Usco Sheet Rubber Flooring can be successfully laid 
on any base (wood, concrete or metal), and our method 
of laying it prevents any moisture from getting under 
the rubber flooring, thereby eliminating any danger of 
cracking or buckling. 

Usco Sheet Rubber Flooring is quiet, sanitary, non- 
slipping, beautiful in appearance, and extremely dur- 
able. The ultimate cost of this material is lower than 
any other floor covering of which we know. 




[.18] 




SHIP-BUILDING 



BELTING 

MANY shipyards have wood-working plants ope- 
rating in connection with the raw materials 
division of the business. Shipyards using considerable 
wood in either way or ship construction, have wood- 
working plants forming a part of the shop system. 

Where such a plant is operated it is obviously neces- 
sary to transmit the power to various machines by 
means of belting. 

RAINBOW BELT 

FOR those drives demanding a heavy belt for large 
horsepower regardless of the speed, such as the main 
drive, re-sawing machines, etc., we recommend our 
Rainbow brand. 

Rainbow Belt is a friction surface belt, very flexible, 
and one which will increase efficiency by lack of slip- 
page. 

Rainbow Belt is constructed of a duck that permits 
of thorough impregnation of the rubber binder that 
holds the plies together. This binder is strong, and yet 
elastic enough to permit the belt to adjust itself to the 
arc of the pulleys without ply separation. 

Exact widths and plies can be determined by the 
fundamental rules found in a succeeding book. 

[19} 




[*>] 




SHIP-BUILDING 



PILOT BELT 

THE wood-working plant of a shipyard contains 
machines which receive their power at a high 
speed and consequently over small pulleys. Small 
pulleys, high-crowned pulleys, quarter turns, crossed 
drives, and other unusual conditions which are always 
found around planers, molders, edgers, trimmers, etc., 
make a light weight duck belt the most efficient. It is 
obvious that the greater the number of plies in a given 
thickness the less action there is between adjoining 
plies. 

Pilot Belt, our recommendation for this class of ser- 
vice, is constructed of light weight duck and a rubber 
binder that readily permits of such action between the 
plies (as described above) without causing the plies 
to separate. Where necessary, Pilot Belt can be fur- 
nished endless. 

Exact widths and plies can be computed from the 
rules found in a succeeding book. 

DIAPHRAGMS 

THERE is a limited quantity of Pump Diaphragms 
used for various classes of service in ship-building 
yards. 

We manufacture a complete line of Loud, Edson, 
Gould and Demming Diaphragms, all of which are fur- 




SHIP-BUILDING 



nished of a compound which will not readily break at 
the flexing point, which is obviously the weak point of 
any diaphragm. 




The strength of the duck and the nature of the rub- 
ber compound are such as to enable our diaphragms to 
withstand the dirt, grit, and sand encountered by them 
in general pumping service. 

We fully understand the requirements of a diaphragm 
and are prepared to manufacture an article to meet the 
conditions of service after inspection of those conditions. 

VALVES 

THE satisfactory working of a pump depends largely 
on the adaptability of the valves employed for the 
service. On account of the greatly varying conditions, 
this subject often appears to be very complicated. 

There are a great many factors entering into the life 
of pump valves which should be carefully taken into 
consideration before recommending a valve for any 
specific class of duty. Satisfactory service is attributable 
to the proper understanding of the conditions the valves 
are called upon to meet. We can herewith make recom- 




SHIP-BUILDING 



mendations only for those conditions which are general. 

The specific conditions must be considered as individual 

cases. 

The factors entering into the life of Pump Valves are 

as follows: . 

-r^. i j pounds per square inch. 

Discharge pressures r • r , V P- , , • r 

,.-. I or vertical lilt or head in feet. 

Suction lift in feet. 

Kind of guard — straight or curved. 
Type of valve seat. 
Percentage of seating area. 

Kind of water, clear or gritty, oil or other liquid. 
Nature of water, fresh or acidulous. 
Temperature of liquid pumped. 
For pumping cold water, maximum temperature 170 
degrees, and maximum pressure of 125 pounds, we 
recommend a gray valve, known as our No. 308. 

For pumping cold, gritty water, maximum tempera- 
ture 150 degrees and maximum pressure of 100 pounds, 
we recommend a gray valve, known as our No. 278. 

For hot water, boiler-feed service, average tempera- 
ture 210 degrees, maximum pressure 150 pounds, we 
recommend a black valve, known as our No. 28. 

For condenser service, where a soft elastic valve is 

required, we recommend a red valve, known as our No. 5 8 . 

For a light condenser and air-pump service valve we 

recommend our No. 128 valve, which we have found 

particularly adaptable for marine condensers. 

We always appreciate the opportunity to make a 

t> 3 ] 




SHIP-BUILDING 



study of each specific class of pump-valve service and to 
make our recommendations accordingly. 

PACKING 

MODERN engineering and power-plant construc- 
tion have introduced specific and economic con- 
ditions requiring special installations; and to meet such, 
we originated and manufacture a very large and diver- 
sified line of packings and gaskets to meet all require- 
ments. 

The general principle involved in designing packing 
is to prevent leakage where two surfaces come together, 
at the joint of which there is pressure of steam, air, 
ammonia, water or other fluid. 

There are two general conditions: First, the joint be- 
tween two immovable surfaces, such as the joint be- 
tween the flanged ends of two pipes or the joint between 
the valve-chest cover and the valve chest. This condi- 
tion calls for the use of gaskets or sheet packing. Second, 
the joint between one stationary and one movable sur- 
face or the joint between two movable surfaces, as is 
readily illustrated by a piston rod or valve stem of an 
engine, or the plunger of a pump. This condition calls 
for the use of rod or ring packing. 

As a result of these two conditions, packing can gen- 
erally be divided into two distinct classifications — sheet- 
packing, and rod-packing. 




[25 ] 




SHIP-BUILDING 



SHEET PACKING 

THE application of sheet-packing and its success 
depends largely upon a thorough analysis of the 
conditions under which the packing must perform, to- 
gether with the application of the proper packing which 
will perform the service required. 

For example, in joints under normal conditions, sheet- 
packing 1/ 1 6-inch thick gives excellent results. Where 
the alignment is faulty, or the flange is corrugated or 
rough, a thicker packing gives best results. 

In the case of ungraphited packing, and where it is 
necessary to occasionally break a joint, it is well to smear 
the surface of a gasket with a paste made of graphite 
and water. This enables the engineer to break a joint of 
any kind without destroying the gasket. 

After the joint is properly packed, steam should be 
admitted to the pipe slowly, in order to warm up the 
packing gradually. Sudden application of pressure, 
which may be air-pressure in advance of the steam, 
often blows out the gasket. 

After a light pressure of steam has been turned on 
long enough to thoroughly warm the joint, it should be 
shut off and all bolts and nuts holding the flange tight- 
ened up to press the flanges more firmly into the gasket. 



[26] 



SHIP-BUILDING 





Style No. 


Form 


9 


PLAIN 


l 9 


WIRE INSERTED 



RAINBOW SHEET PACKING 

FOR those stationary joints where a packing is re- 
quired to withstand a maximum pressure of 150 
pounds saturated steam, or for any hydraulic pressure, 
we recommend Rainbow Sheet Packing. 

This packing is particularly adaptable to vibrating 
joints incidental to marine service. 

The reputation of Rainbow Packing is so universal 
that every user of sheet packing is familiar with it to the 
extent of making any further description superfluous. 

Rainbow Sheet Packing is the original Red sheet, and 
is only genuine with the following Trade Mark. 



M 





SHIP-BUILDING 



Rainbow is furnished both plain and wire-inserted 
and is manufactured in rolls 36 inches wide, weighing 
approximately 100 and 200 pounds. Manufactured in all 
standard thicknesses. 




Style No 
699 



VANDA SHEET PACKING 

THE most successful sheet-packing is one which 
will stand a high temperature and cannot be forced 
out at the joint by high pressure, and will resist disin- 
tegration caused by heat, oil, acid or alkali. Vanda 

[28] 




SHIP-BUILDING 



Sheet packing has successfully performed all of these 
requisites. 

Vanda Sheet-Packing is essentially a product of the 
proper combination of asbestos and rubber, with a lubri- 
cating composition that preserves it'from drying out and 
makes it unaffected by condensation. 

The compressed combination of these two products is 
manufactured in such a way as to make the packing 
gas-tight and incapable of water-absorption. 

Vanda Sheet-Packing will not soften, burn, blow or 
ooze out of a joint. The compound being water, acid 
and alkali-proof, will resist any action on the finished 
sheet. 

We particularly recommend Vanda Sheet-Packing for 
high pressure steam-pipe flange connections, steam cyl- 
inder heads, internal combustion engines, and places 
where a packing meets with acid, alkali, ammonia, 
petroleum, etc. It is made in 1/64-inch, 1/3 2-inch, 
1/ 1 6-inch, 3/32-inch and 1/8-inch thicknesses, and 
sheets 54-inches by 54-inches. 

ROD OR RING PACKING 

THE general principle involved in designing rod or 
ring-packing is to prevent leakage of steam, 
water, etc., upon rods, subject to rotary, lateral, or re- 
ciprocating motion. 

This must be done with as little friction as possible, 

M 




SHIP-BUILDING 



while at the same time the packing should not be de- 
signed to act as a guide for the rod or stem which it 
surrounds. On the contrary, it should be designed so 
that it will be sufficiently flexible to follow the lateral 
or rotary movement of the rod without allowing any 
leakage. 




Style No. 


Form 


IOI 


SPIRAL 


102 


RING 


103 


COIL 



RAIN-BESTO HIGH PRESSURE PACKING 

WHERE a piston packing must work under high 
pressure steam or super-heated steam, we recom- 
mend Rain-besto High Pressure Packing. 

This packing is made with a center block of woven 
asbestos cloth, to which is attached a heat-resisting 
rubber cushion. Around this is wound two layers of 
closely woven asbestos cloth, which are held together by 
a heat-resisting compound. The finished product is lubri- 
cated and graphited. 

[30] 




SHIP-BUILDING 



We recommend Rain-besto High Pressure Packing for 
all high pressure and super-heat steam on rods, and on 
valve stems of all types of engines, air compressors, 
steam turbines and pumps. 

It is manufactured J^-inch to i M-inch, inclusive, and 
in spiral form. It is packed 12 feet to a box. 




tyle No. 


Form 


231 


SPIRAL 


232 


RING 


^ 


COIL 



PEERLESS CROSS EXPANSION PACKING 

WHERE steam conditions require a low-pressure 
piston packing, or for piston rods and valve stems 
on steam, ammonia, hot and cold water service, we 
recommend Peerless Cross Expansion Packing. It is not 
recommended for superheat steam. 

Peerless Cross Expansion Packing is made of espe- 
cially closely-woven duck, with a high-grade rubber 
friction or binder, which holds the duck together. The 
duck is laid diagonally instead of at right angles. 

[31} 




SHIP-BUILDING 



The Packing is thoroughly graphited and lubricated 
and is made in all sizes from X-inch to i}i-'mch y in- 
clusive. 

Spiral form is packed 12 feet to the box. 




Style No. 


Form 


125 


BRAIDED^ON SPOOL 


186 


TWISTED ON SPOOL 



WIZARD VALVE STEM PACKING 

FOR packing globe and angle-valves, we recommend 
Wizard Valve Stem Packing. 

Wizard Packing is made of a commercially pure as- 
bestos yarn, the strands of which are thoroughly lubri- 
cated and graphited before braiding. We have a method 
of lubricating this material, during the course of manu- 
facture, which insures its remaining soft while in the 
stuffing box. 

Wizard Packing is made both braided and twisted, 
and in sizes from 3^-inch to i>^-inch, inclusive. 

[30 



SHIP-BUILDING 





tie No. 


Form 


681 


SPIRAL 


682 


RING 


683 


COIL 



HONEST JOHN HYDRAULIC PACKING 

IN marine yards where hydraulic conditions are ex- 
perienced, we recommend Honest John Hydraulic 
Packing. 

Honest John is a square braided flax packing, braided 
without corners. In the center is a red rubber core 
which gives the packing greater elasticity, so that it 
conforms to the rods out of line, or allows for expansion 
and contraction due to change of temperature. 

Honest John Packing is treated with a waterproof 
compound that holds the fibre together and protects it 
from the disintegrating effects of water. 

We recommend Honest John Packing for all hydrau- 
lic pressures, on all types of pumps, elevators and ac- 
cumulators. 

This packing is regularly made in sizes from 34-inch 
to 13^-inch, inclusive, and in spiral form. It is packed 
12 feet to a box. 

[33} 




SHIP-BUILDING 




y/e No. 


Form 


463 


COIL 


4463 


RING 



PEERLESS SPECIAL CANVAS PUMP PACKING 

WHERE packing is required for inside packed 
pumps handling hot or cold water, we recom- 
mend Peerless Special Canvas Pump Packing. 

This packing is made of a very fine and closely-woven 
duck, which is frictioned or held together with a white 
rubber compound. 

To meet the different service requirements it is made 
either rock hard or medium hard. The rock hard style 
is especially adaptable for hot-water service on inside 
packed pumps. The medium hard style is recommended 
for cold-water service in the same type of pump. 

This packing is furnished in either coil or ring form 
and in sizes ^-inch square to i%-\nc\\ square, inclusive. 

[34] 



SHIP -BUILDING 





Style No. 


Form 




592 


RING 




S93 


COIL 




594 


REEL 




PEERLESS BRAIDED FLAX 


PACKING 



FOR packing outside packed plunger pumps, hy- 
draulic presses, accumulators, etc., we recommend 
Peerless Braided Flax Packing. 

Peerless Braided Flax Packing is carefully braided 
and lubricated and is usually packed in flat coils. 

However, it is furnished in either coil or ring form, 
and in sizes from ^-inch to iX- mcn > inclusive. 



[35] 



AFTERWORD 

WE manufacture a complete line of Beltings Hose, Pack- 
ing, Mats, Molded specialties and other mechanical 
rubber goods for every purpose. We welcome the opportunity 
to investigate the physical conditions of service expected from 
any product, and make our own recommendations accordingly. 

United States Rubber Company 

Mechanical Goods Division 



[36] 




SHIP. BUILDING 
CONTENTS 

PAGE 

Foreword 3 

Belting 19 

Pilot . . . . 21 

Rainbow 19 

Diaphragms .21 

Flooring 

Usco Sheet Rubber 1 7 

Rubber Matting 17 

Hose 

Acetylene .- 9 

Air 5 

Connecting Pipe Line 8 

Fire II 

Steam 13 

Suction 14 

Water 15 

Port & Hatch Rubber, Pilot 16 

Packing ' . . . -24 

Rainbow Sheet . 27 

Vanda Compressed Sheet 28 

Hydraulic-Honest John 33 

Peerless Braided Flax 3$ 

Peerless Cross Expansion 31 

Peerless Special Canvas Pump 34 

Rain Besto High Pressure 30 

Wizard Valve Stem 32 

Rod or Ring 29 

Valves 22 

Afterword 36 

[37] 




SHIP-BUILDING 























MEMORAN 


D. 


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SHIP-BUILDING 






















M] 


iMORANDA 

























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































MSI 



SHIP. BUILDING 
MEMORANDA 



COPYRIGHT I9.I9 BY 

UNITED STATES RUBBER COMPANY 

NEW YORK CITY 

U. S. A, 



THE MILES PRESS, NEW YORK 



LIBRARY OF CONGRESS 





